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Proceedings Paper

Interferometric measurement of the refractive error of the eye
Author(s): Henning Stiller; Ulrich Oechsner; Bernhard Rassow
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Paper Abstract

A Michelson interferometer is used to determine the refractive error of the eye. A coherent infrared point source radiates into the eye; at the fundus the light is scattered. The light wave emerging from the eye depends on its refractive error. The wave is analyzed by means of the interferogram which results from superposing a reference light wave. The refractive error is determined in two steps: (1) Speckle size is enlarged by moving the point source towards the plane conjugate with the eye's fundus. (2) Interference fringes which appear when speckle size exceeds fringe intervals are evaluated by Fourier analysis after suitable transformation of coordinates.

Paper Details

Date Published: 1 February 1994
PDF: 14 pages
Proc. SPIE 2083, Microscopy, Holography, and Interferometry in Biomedicine, (1 February 1994); doi: 10.1117/12.167413
Show Author Affiliations
Henning Stiller, Hamburg Univ. (Germany)
Ulrich Oechsner, Hamburg Univ. (Germany)
Bernhard Rassow, Hamburg Univ. (Germany)


Published in SPIE Proceedings Vol. 2083:
Microscopy, Holography, and Interferometry in Biomedicine
Adolf Friedrich Fercher; Aaron Lewis; Halina Podbielska; Herbert Schneckenburger; Tony Wilson, Editor(s)

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